Fuel-oil burner



T. F. KRIEG.

FUEL OIL BURNER. APPLICATION FILED DEC-27, 1918.

1,339,358. Patented May 4, 1920.

Smu

THEODORE F. KRIEG, OF DETROIT, MICHIGAN.

FUEL-OIL BURNER.

Specification of Letters Patent.

Patented May 4, 1920.

Application filed December 27, 1918. Serial No. 268,532.

To all whom it may concern:

Be it known thatI, THEODORE F. Kaine, a citizen of the Republic of Prussia, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Fuel-Oil Burners, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to valves for oil burning furnaces, and its object is to pro: vide a simple and comparatively inexpensive form of construction for valves of this character and embodying the air control valve and oil burner valve in a single body. Heretofore in valves of this character, it has been the practice to use a'group of three valves, viz.a.n air control valve, an oil control valve, and an oil burner valve, resulting in an expensive construction. The principal object of this invention is to eliminate a part of the independent valve members heretofore utilized and combine the same in a single body with merely a simple shut-off valve in the oil line. A further obj ect'of the invention is to provide an oil burner valve of a construction readily disassembled for cleaning of the parts without disturbing the relationship of the valve body relative to the oil and air lines. An additional object is to provide a construction enabling the oil line to be cleaned without disassembling the valve. These objects and the several novel features of construction are hereinafter more fully described and claimed and. shown in the accompanying drawings in which Figure 1 is a vertical longitudinal section of an oil burner valve embodying my invention.

Fig. 2 is a cross section taken on line 00m of Fig. 1.

Fig. 3 is a perspective view of the air control valve. I

The device consists of a body 1 having a threaded cylindrical part 2 at a right angle to the longitudinal aXis of the body 1 to which the air line is attached. One end of the body 1 is provided with a cap member 3 internally coned at the forward end as shown and provided with an outlet aperture 4. The oil supply pipe 6 is connected with a coupling 7 in a threaded aperture therefor provided on the upper side of the body 1 and to the bottom end of this coupling is attached a threaded tube 8 connected with. the T coupling 9. To the forward end of this T coupling is attached a tube 10 at the terminal end of which is provided the nozzle 11 terminating just back of the aperture 4. This nozzle is supported in position in the head by means of arms 12 centrally formed to provide a support for the nozzle. To the rear end of'the T is also connected a tube 13 closed at'the rear end by means of a cap 14 and this tube '13 extends at the rear end through the base 15 of the tapered valve 16. The body 1 is tapered to receive this valve member, and the valve member is held on its seat by means of the tube 13 which is threaded at the rear end to receive the locknut 17. The T coupling 9 being secured in position by the tube 8 enables thetube 13 to be turned by means of the cap end 14 to release it from the coupling and allow the valve member to be withdrawn. The head 15 of the valve is provided with an operat ing handle 18 which is secured thereto by means of screws 20. The valve member 16, shown in perspective in Fig. 3, is provided with an opening 21 adapted to register with the opening into the body of the portion 2 and controls a flow of air through the air line into the body of-the valve. To enable the valve 16 to be withdrawn longitudinally of the body the said valve member is slotted longitudinally as indicated at 22 to pass each side of the oil tube 8'and when seated may be turned on its longitudinal axis, the slot 22 having at the inner end thereof a circumferential. slotted portion 23 openinginto the slot 22 to allow freedom of movement of the valve member about its axis. The slot 23 is provided to receive the tube member 8 in the revolution of the valve member. The oil line 6 is provided with a small valve member 24 by means of which the supply of oil may be controlled as will be readily understood.

By the construction and arrangement de-' scribed, the oil burner valve and air valve are comprised in a single instrumentality, and the valve in the oil line is of simple character allowing a flow of oil or entirely closing the line to flow as will be readily understood.

The flow of air is controlled solely by the valve member 16 which opens the air line connected with the part 20f the valve body 7 and oil is fed to the valve under a pressure of about sixty pounds per square inch and air supplied at a pressure of about one pound, but the quantity of air is greatly in excess of the quantity of oil as will be readily understood and may be varied by operation of the valve member 16. The air,

and oil are discharged together at the discharge aperture 1 of the valve forming an oil spray as it passes into the furnace and is there burned in the usual manner. The tube 13 opening to the exterior of the valve allows the oil nozzle to be cleaned of obstruction or congealed oil by simply introducing a wire from the cap end and without disassembling of parts except to remove the cap 1 for the purpose.

From the foregoing description it becomes evident that the valve structure described is inexpensive in character as the air control and oil burner are embodied in the same case as a unit and dispensing with a separate air control valve as is usual heretofore. Furthermore, by the arrangement of the tapered. valve and the tube 13 and nut 17 on the outer end thereof a simple and efficient means of retaining the valve. on its seat is provided enabling the valve to be disassembled and quickly assembled after cleaning.

Having thus briefly described my invention', what I claim is-- 1. A burner for oil burning furnaces comprising a hollow body tapered longitudinally from one end to near the other end and being open at the rear end, a tapered valve adapted to be inserted thereinto from said rear end, the body having an internally coned portion terminating in an aperture at the forward end, an oil line leading into the body at a right angle to the longitudinal axis thereof, a second oil line into which the first named line opens, the second line extending from the rear end of the valve toward and, terminating short of the forward end of the body, a nozzle at the forward end adjacent the aperture, a closure for the projecting end of the said second oil line, the body having a conduit entering one side thereof for connection with an air line, the valve being rotatablev to control a flow of air through the burner, and. a

valve in the oil line for controlling the flow of oil therethrough.

2. A burner for oil burning furnaces comprising a body open at opposite ends and being longitudinally tapered for reception of a valve from one end, a tapered valve therefor, an oil line leading into the body at a right angle to the longitudinal axis thereof, a second line extending longitudinally of the axis and connected with the first named line, a nozzle at the forward end of the said last named line, an internally coned cap member for said body having a central aperture adjacent the nozzle, said tapered valve having a longitudinal slot and a circumferential slot opening thereinto at the bottom to allow the valve to be inserted in the body with the oil line in place and enabling the same to be turned with the oil line engaging in the said slots, the valve having an aperture on the side opposite the longitudinal slot, said body having a tubular extension opening into the body on the side opposite the oil line, the said aperture in the valve body being adapted to register therewith, means for holding the valve on its seat, and means for turning the valve.

3. A burner for oil burning furnaces comprising a hollow body longitudinally tapered from one end to provide a seat for a valve and having an internally coned, apertured forward end, an oil line leading into the body at a right angle to the axis thereof having a nozzle terminating adjacent the apertured end, said body having a conduit opening through one side thereof opposite the oil line and a tapered valve seating in the body, the valve having a longitudinal slot on one side and a circumferential slot opening into the bottom thereof allowing the valve to be passed into the body over the oil line, and enabling the valve to be turned on its seat, the valve having an aperture on the opposite side adapted to register with the opening to the conduit, means for holding the valve on its seat, and means for rotating the valve.

In testimonywhereof I sign this specification.

THEODORE F. KRIEG. 

